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Finding the Fourth Proportional to 6,650.88, 9,979.37 and 2,491.22

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Solution

The fourth proportional to 6,650.88, 9,979.37 and 2,491.22 is: 3,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.88 : 9,979.37 = 2,491.22 : x
  2. Step 2: Convert to fraction form
    6,650.88/9,979.37 = 2,491.22/x
  3. Step 3: Cross multiply
    6,650.88x = 9,979.37 × 2,491.22
  4. Step 4: Simplify right side
    6,650.88x = 24,860,827.97
  5. Step 5: Solve for x
    x = 24,860,827.97/6,650.88
  6. Step 6: Final answer
    x = 3,737.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.